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STatiana [176]
3 years ago
13

What is the following product? (5√2-4√3)(5√2-4√3)

Mathematics
1 answer:
Galina-37 [17]3 years ago
6 0

Step-by-step explanation:

(5√2-4√3)(5√2-4√3)=

(5√2-4√3)^2=(5√2)^2+(4√3)^2-2(5√2)(4√3)

=25*2+16*3-10√2*4√3

=50+48-10√2*4√3

=98-10√2*4√3 is the answer

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9. You are installing a swimming pool. Write a polynomial that represents the area of the walkway
Anastasy [175]

Answer:

  (10x² +12x +32) ft²

Step-by-step explanation:

The area of the walkway around the pool is the difference between the area of the entire rectangle, and the area of the pool. The area of each rectangle is found by multiplying its length and width.

__

<u>Overall area</u>:

  ((2x +6) ft) × (10x) ft = (10x² +60x) ft²

<u>Pool area</u>:

  ((6x -4) ft) × (8 ft) = (48x -32) ft²

<u>Walkway area</u>:

  overall area - pool area = ((10x² +60x) ft²) -((48x -32) ft²)

  = (10x² +12x +32) ft²

6 0
2 years ago
Please help, will mark branliest and 33 points!
LuckyWell [14K]

Answer:

Area  = 45 sq ft

Step-by-step explanation:

Scale conversion:

2 inches = 6 feet

5 inches = 15 feet

Area = 1/2 base times height

Area  - 1/2 x 6 x 15

Area = 45 ft squared

4 0
3 years ago
Please help 10 points
KIM [24]

Answer:

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5 0
2 years ago
14. As x increases in the equation 3x – 2y = 6, the value of y
Harman [31]
B. Decreases

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8 0
3 years ago
Based on your value of x in question #1, what is the value for ∠EHF
Ludmilka [50]

Answer:

∠EHF = 132°

Step-by-step explanation:

Both angles lie on a straight line.

=====================

  • ∠EHF + ∠FHG = 180°
  • 2(x) + 48° = 180°
  • 2(x) = 180° - 48°
  • 2(x) = 132°
  • x = 66°

Then ∠EHF :

  • 2(x)
  • 2(66)
  • 132°
6 0
2 years ago
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